You are whatever your hair says you are, and that’s not a statement about style. Your hair stores within it a chemical record of what you’ve been eating (and you are, as we all know, what you eat). A new laser-based method of chemical analysis can produce an hour-by-hour record of what you’ve been eating from a single strand of hair, making your ‘do into a detailed forensic record.
When I was taking chemistry in college, the mass spectrometer was a desk-mounted machine about twice the size of a PC. Oh, how times do change. Researchers at the California Institute of Technology have created the first nanoscale mass spectrometer. Only four micrometers across, the device can measure the mass of single molecules in an entirely novel way.
Modeling the behavior of pollution clouds can help combat them
By Sam BarrettPosted 07.31.2008 at 5:25 pm 0 Comments
Chemists from Aerodyne Research, Inc. and Boston University have developed an aerosol mass spectrometer that will aid in the study of airborne particles and their effect on climate change and public health.